battery goes dead all the time!!!

hey peps im having this problem in my car…^…well my battery keeps dieing on me and i dont know why. I put my girls car battery to see if it was the battery car turn on and evrything but after an hour i try to started up again, the car do the same thing NOTHING i could just here a click noise…but i know is not the battery cause my girls car is working fine with my battery. I already disconected my sound system (amps & stereo)thinking it was that but still the same…could u guys help me out with this problem…im tired of jump starting my car:bang:

sounds like your alternator is shot… take it out get it checked if you can… or if you don’t think its the alternator not gonna say search because its in the wrong thread, but fcm and I are working this out of my car actually lol…

http://g2ic.com/forums/showthread.php?t=198063 scroll down to see the possible solution